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New occurrences of Palaeopascichnus from the Stáhpogieddi Formation, Arctic Norway, and their bearing on the age of the Varanger Ice Age

New occurrences of Palaeopascichnus from the Stáhpogieddi Formation, Arctic Norway, and their bearing on the age of the Varanger Ice Age Thumbnail


Abstract

We report on new occurrences of the late Ediacaran problematicum Palaeopascichnus (Protista?) from the Stáhpogieddi Formation, Arctic Norway. The stratigraphically lowest occurrences are in beds transitional between the Lillevannet and Indreelva members: the highest in the second cycle of the Manndrapselva Member, stratigraphically close to the lowest occurrences of Cambrian-type trace fossils. This establishes a long stratigraphical range of Palaeopascichnus on the Digermulen Peninsula, as has been previously documented from Newfoundland, South Australia and elsewhere in Baltica. The age range of Palaeopascichnus in Avalonia and Baltica is ~565 to 541 Ma. Since the transition from the Mortensnes Formation to the Stáhpogieddi Formation is without a major break in sedimentation, this supports the inference that the underlying glacigenic Mortensnes Formation is ca. 580 Ma, and therefore Gaskiers equivalent, or younger.

Journal Article Type Article
Acceptance Date May 11, 2018
Online Publication Date Sep 18, 2018
Publication Date Nov 1, 2018
Publicly Available Date Mar 28, 2024
Journal Canadian Journal of Earth Sciences
Print ISSN 0008-4077
Publisher NRC Research Press
Volume 55
Issue 11
Pages 1253-1261
DOI https://doi.org/10.1139/cjes-2018-0035
Keywords Palaeopascichnus, Norway, Ediacaran, glaciation
Publisher URL http://doi.org/10.1139/cjes-2018-0035

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